I am also currently breastfeeding my 2 month old. I just this past week started eating better and sticking with a calorie range that is reasonable. I have been exercising for about 6 weeks.
My weight is slowly coming off, but with my first it did not come off at all! In fact, I still had my extra 30 lbs. from the first when I got pregnant with the second. Weird pregnancy with her though, I only gained 5 lbs. throughout the pregnancy and have lost around 15 lbs since I had her. I have a goal to lose an additional 65 lbs, and to do it by my 30th Birthday in September, so hopefully my body will cooperate!